3 Node Hyper-V 2012 R2 Cluster Design

Below diagram shows a traditional 3 tier highly available cluster with 3 Hyper-V nodes and 2 shared storage nodes (storage in Active-Passive/ Active-Active mode) all connected via network switches.

Compute

*Hyper-V nodes are running on DELL PowerEdge R630 rack servers

Networking

*Shared storage is accessed via MPIO over two separate VLANs (61 and 62)

*VM traffic is over NIC teaming (Switch independent and dynamic)

*Live migration/ cluster network is also teamed together

Storage

*We are using DELL PowerEdge R320 with Open-E DSS V7 as storage nodes

*Each node has 8 x 10K SAS drives with RAID 5

*Storage can be either in Active-Passive/ Active-Active cluster mode

*In Active-Passive mode, only one of the storage nodes will be active. That means resources of only one storage node will be utilized at a time

*In Active-Active mode, both servers will be active and serving storage traffic 



What is IT IMS ?

IT IMS refers to IT Infrastructure Management Services (IMS). Information Technology is critical in every business now-a days; right from entertainment, media, banking, automobile, education and so on. The use of computing devices and networked systems are growing rapidly. It is vital for a business, to keep its hardware resources, networks and applications fully functional, available and running in 24/7 mode. The discipline of managing and maintaining the hardware devices, networks and applications for continuous service availabiltity with no down time is referred as IT IMS.

It mainly covers the following areas :

-End user computing

-Desktop administration

-OS administration

-Desktop troubleshooting and maintenance

-Server administration

-Server monitoring

-Networking (routing and switching)

-Network security

-Network monitoring

-Service desk operations

-Virtualization of resources and its management

-Data center operations and maintenance
-Management of on-premise as well as cloud IT infrastructure etc.

IT IMS includes multiple operations and it can be broadly classified into three, based on the process models and operational levels.

1.Service desk operations

2.Network administration

3.Server administration